^ How is that going to happen? If you're using a selective MAO-A inhibitor, MAO-B will still be taking care of dopamine per usual.
If you're using an MAO-B inhibitor, you still don't accumulate mass amounts of dopamine because MAO-A is still around to destroy it.
If you're using a nonselective inhibitor, I don't think DA just keeps accumulating, either. It's not as if high dose selegiline users develop hyperkinesia. You still have other methods of metabolizing it, so it should raise levels but not beyond a certain point.
But even if it would, since MAO-B levels take quite a while to accumulate to natural levels, they'll be slowly removing any build up while they regenerate, so it's not like there'll be a sudden spike in dopamine metabolism. IIRC, the half life for MAO-B regeneration is something like 14 days.
As long as you're abstaining from everything you need to abstain from, something like selegiline should only do positive things for you. I think I've been on it for 2 weeks now, and I love it.
Hammilton